[webkit-changes] [WebKit/WebKit] 67d8cd: [IFC] Add simplified maximum width computation

[Alan Baradlay]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 67d8cd88c7db1995ccf9e0a39d5e54dcb0ef7dc5
      https://github.com/WebKit/WebKit/commit/67d8cd88c7db1995ccf9e0a39d5e54dcb0ef7dc5
  Author: Alan Baradlay <zalan at apple.com>
  Date:   2023-11-22 (Wed, 22 Nov 2023)

  Changed paths:
    M Source/WebCore/layout/formattingContexts/inline/IntrinsicWidthHandler.cpp
    M Source/WebCore/layout/formattingContexts/inline/IntrinsicWidthHandler.h

  Log Message:
  -----------
  [IFC] Add simplified maximum width computation
https://bugs.webkit.org/show_bug.cgi?id=265227

Reviewed by Antti Koivisto.

This patch adds a fast (not using a linebuilder) path for simple content
with a single inline item (e.g. <div>foobar</div>) to compute the maximum content width.
This is a relatively common case for regular web content (e.g. flexing menu items or excel like tables with single cell content).

* Source/WebCore/layout/formattingContexts/inline/IntrinsicWidthHandler.cpp:
(WebCore::Layout::isContentEligibleForNonLineBuilderMaximumWidth):
(WebCore::Layout::IntrinsicWidthHandler::computedIntrinsicSizes):
(WebCore::Layout::IntrinsicWidthHandler::simplifiedMaximumWidth):
* Source/WebCore/layout/formattingContexts/inline/IntrinsicWidthHandler.h:

Canonical link: https://commits.webkit.org/271059@main